Buffalo TeraStation 3420 Partially Populated 16TB 4-Bay NAS Server (2 x 8TB)

The Buffalo TS3420DN1602 is a four-bay network attached storage server that ships with two 8TB NAS-grade drives already installed, giving you 16TB of ready-to-use capacity from the moment you power it on. Its open bays let you add more drives as your data grows, so the unit starts strong and stays flexible.

This model suits small offices, creative studios, and home labs that need a central place to keep projects, media libraries, or backup images safe. You can set up the included drives in RAID 1 for redundancy or take advantage of the full range of RAID modes, including 0, 5, 6, 10, and JBOD, once you populate the remaining bays. Hot-swap support means a drive can be replaced without shutting the system down, keeping work uninterrupted.

Inside, an Annapurna Labs Alpine AL-214 processor that runs at 1.4 GHz and uses four cores handles file serving, media streaming, and routine maintenance tasks. It works together with 1 GB of DDR3 memory, so multiple users can read or write files at the same time without noticeable slow-downs. Two Ethernet ports sit on the back panel: one is a conventional Gigabit interface, and the other supports 2.5 Gigabit speeds when connected to a compatible switch, giving teams quicker access to large files.

Daily management is handled through a clean, browser-based console that lets you create shares, monitor drive health, and adjust permissions in minutes. Built-in connectors for Amazon S3, Dropbox, OneDrive, and Azure allow off-site copies without extra software. If you prefer a direct approach, rsync support covers device-to-device replication, and Active Directory compatibility lets up to 10,000 users log in with their usual credentials.

Buffalo backs the TeraStation 3420 with a three-year warranty that includes 24-hour hard-drive replacement within the EU, so you can plan around growth, not downtime. Whether you need a primary file server for a design team, a secure backup target for point-of-sale terminals, or a media vault for a home studio, this unit delivers dependable storage in a package that is easy to expand and simple to run.

Highlights:

• 16 TB of storage provided by two pre-installed 8 TB NAS-grade hard drives
• Four drive bays with hot-swap capability for seamless maintenance and future expansion
• Annapurna Labs Alpine AL-214 processor with four cores running at 1.4 GHz, paired with 1 GB DDR3 memory
• Supports RAID 0, 1, 5, 6, 10, and JBOD configurations
• Dual Ethernet ports, including one 2.5 Gigabit connection for faster network throughput
• Native integration with Amazon S3, Dropbox, OneDrive, and Azure cloud services
• Rsync compatibility for straightforward off-device backups and replication
• Web-based management console designed for quick setup and ongoing monitoring
• Active Directory support for up to 10,000 users and groups
• Three-year warranty with 24-hour hard-drive replacement in the EU